Traveling drilling machine



Jul 3, 1928.

v s. MLRATLFF a'nwimme DRILLING momma- Eild 3 1 18. 1926 4 Sheets-sheaf, 1

' INVENTOR- July 3, 1928. v 1,676,206

, s. M. RATLIFF- TRAVELING DRILLING MACHINE {NVENTOR July 3, 1928. 1,676,206

S. M. RATLIFF TRAVELING DRILLING MACHINE Filed Aug. 18, 1926 4 Sheets-Sheet 4 \01 3 v I1 45. 4-7 I? 88 \65 Y w I Q \Q'Z. \se

t6!) 0 \30 lei l58 \60 5 i u l N I B \Jn ,7 I

Patented July 3, 1928;

STANLEY M. mmmmr nonwoon;oHIq' ssIeNoR'To'TnE' AMERICAN. TOQLEWOBKS j 'rRAvnLm DRILIlING iMACI-HNE. g

jiApplicatioii filedugust is, 192e. .;se m111wo. 130.055;

j I Myinvention relates to drilling machines is a longitudinal section, taken on Work being heavy .or cumbersome, .so; thatg ;1t has been found more econom cal 1n (pracp.

"-vide novel means forcon'trolling the locaw -:tlOI1 of the-.dr-i1li1 igmachine; further, to

arranged to be moved bodily with relation other outside the range-of adjustment: of a "stationarily positioned drilling machlne, the

ticeto. adjust the machine than to adjust the Work. f It is theobjectofl my invention to ipro placethe controlling. meansfor travel on the ,clrilling machine vithin easy reach of the operator from hlsusual operating positions;

further to arrange said controllingmeans= so I that the same Will move laterallyith thedrill-slide .upon'; adjustment of the drill- .Jthe ine 1 of Fig; 8. g

a slide; and, further, to locate'the controllingv drill-slide, and theusual adjusting and oper- :means in such positions with, relation to the *atingl parts thereon to be handled by. the

operator, that the'operator instinctively. and J automatically finds-said controllingmeans;

froin'his usual ope'rating positions when it.

H i ,is desiredto'changetheposition of the drill r:-

in-g machine with relationto the work;

The invention will be further readily understood" from the following description. I and claims, and fromthe ClIaW1HgS,"j=1Il Wl11Cl1 latter Fig 4 is a vertical cross-section, taken in" the plane of the lin'e le of 'Fig.

'Fig, -11 ;is a cross-section .tends upwardly. Thepost-is-usuailly inte gral: with i the .base, trotatable column 23f is V rotatable and held parallel with the.;a;cis

1111.111. a ii po t f 1 .A

. ottheqpost in usual?-manner,therebeing suitable bearings betweenf'the rotatable colk, 65,5;

clamp isflarranged to. clamp :Iiotatable column in desired radial l positionswith; irelation to .the..ba se exemplified 21701311119- .be ri g 24 about alower, journal partfofzthe 701;,-

post, voperated in suitable-manner, manual-1y.

or bypower. y A drill-arm 25 has a bearingw26 aboutthecolumn, and isad-justable toelevation thereon, as bymea-ns of a screwv-irod 27 extending lengthwise to the columnand asuitable "coacting nut held endwiseon :the arm Suitable relative rotation-is oaused between the screw-rod on'the ,nut by suitable and usual means a for raising 1 and lowering the drillarm.v The drill-arm is. arranged to be positions by suitable clamping-means 28.,

. Fig. 5 is a vvertical-section.-of:a; -detail of the same; taken onftheline. 5

fin the plane of the linef6.-6 of B igh-5.

I Fig. 7 is-a diagrammati e viewoffthegelectric-circuits of my improved device. i

Y Fig. 8 is an encl.view,=ipartly in seotionionmeans of my improved device;

5 of! Fig. 1. a .Fig. 6 is across-section of the sameitakeni i v v uThesLideh s: aidrill-spindle 38f "journaled H The spindle R is arrangedto havevaf suitable? dri 11-"39' fixed thereto in usual manner for coactingwith Y the line ,8,8 of Fig: 9; and partly brokenw'the workfwhich maybe ofindefinite-length away, showingamodificationiotthedriving-r The clrill -arm i's exemplifiedv .as-rotatable '85 g g p A ing. of theqdril'l-arm withirelation-to the. Fig. 1 is a; perspective view of imwith: the column for: desired radial-position- I LA drill-slide 81 is adjustable *laterallyion I t clampedto the column in 'desiredelevational the drill-arm, as on guides 32, 33, the l'at- ;era1;\-adjustments .beingeifect'ed -by suitable means, hiohwar'e instanceol as including a taken in the plane of theli ne 3.-3=of Fig. 1

rack' 34eeX-tending lengthwiseof the drill-1 arnna pinion suitably}mountedon thedrill- Y slijde,meshfing therewithand operated by i suitable gearing between the lp-i-nio-n" and suitable-handles 35, 36,.o'na :cross-shaft 37, gjournaled-dn the slide; i

and feedable axially therein.

and parallel;- withth-e track.

I 21 stale drilling- The carriage isarranged to bag-moved along a track, which may be ofgindefinite 1 length, exemplified at 45, which is rigidly same to prevent tilting."

secured to the foundation supporting the The track is shown as a sub-base, in Figs.-

" l to i 4 "inclusive; Guides 46, 1 47," extend lengthwise of the sub-base, and "coact' with guide-ways 48,49, on the ca'rriage. The track supports the weight of the carr ageand {of the drilling machine mounted thereon.

The securing means for securing the subbase te -the foundation, are exemplified as anchor bolts 43 and nuts 44.

Side flangesdepend from the carriage and, are rigidtherewith and coact with end faces 51 on the track, formaintaining alignment between the carriage and the track.

Lower inwardly extending flanges 52, rigid with the carriage, coact with under guidefaces53 on the track," at the respective sides sci.

of the track, for preventing tilting of the carriage and machine carried there-by; Suit able adjustments may be provided for the flanges. The flanges are shown as forming protecting aprons for the'guides.

The means for moving thecarriage length wise of thetrack are exemplified in Figs. 1

"to 4 inclusive, ascomprising a rack 61' ex I tending lengthwise of and fixed to the sub 1 base or track, and a pinion 62- on the carif m riage. The pinionis fixed to aeshaft 68 journaled ina bearing. 64 in a gear box 65' fixed to' the carriage. The shaft 63. has a worm-wheel Stlffixed thereto, A worm '67 mesheswitht-he worm-wheel'and is fixed to a shaft 68 journaled in bearings 69 of the gear-box 65. The wormshaft 68 has a'gear 70'fiXed thereto, which is meshed by a pinion 71fiXed to a shaft 72, journaled in abearing 73 onthe gear-box, and in a bearing 74 on jan upright 't'f i extending from the carriage." The shaft 72 extends through the base 21,

is located in holes 7 6 therein, the walls of which may formbearings if desired.

A inotor '81, shown as an electric motor, is fixedto the carriage, therotor-shaft 82 of said electric motor having suitable drive connection, instanced' at 88, with the shaft The motor is instanced as an electric motor, and the power-supplying means are mstanced as a sultable' electric circuit for.

said motor, and the power controlling means are instanced as a partial circuit leading to the drill-slide and ;liaving an. electric translating device movable with the drill-slide,

' contacts 109, 110.

although it is obvious that other n'1otive ower iowe'r su) l in means ower controlling means and control operating means may be employed, without departing from -thespirit of my invention within the scope of the appendedclaims. p 7 p ls nstanced as a re The electrlc motor versible motor for rotating the shaft 72 in" reverse directions, as desired, for moving the carriage 1n one direction, or 1n the op posite direction, selectively, for placing the drilling machine at any desired point. along the trackfor cooperation at any desired point with the work.

Theelectric motor 81 is instanced' in main electric circuits includinga suitable sourceof electric energy, 'as the generator in a suitable power circuit. 7

The respective main electric circuits include operated elements 85,- 86, and" 87, 88,

for closing'said rspective main electric circuits. which operated elements are respectively controlled by magnetizing elements "89, 90, forming magnetic. switches 91, 92,

the armatures 93, 94, of which are shown supporting the electro-conductive parts 85,

86, and 87, 88,01 said switches, although the armatures may form such electro con- "suitable source of electric power, as thegen erator of a power circuit. Thesewires are electrically connected with the electro-con- 'ductive operated elements 87, '88, arranged to be drawn against the contacts.103 104,

in wires 105, 106, leading to the motor81: 'Wires 10 7, 108, lead. froln the wires 101, 102, and are connected with theelectro-conductive operated elements 85. 86, which are arranged, to make contact with the electric Vi ires 111, 112. connect these contacts respectively with the wires 106, 105, for rotating the motor in the opposite directions.-

The magnetizing'elements are preferably in control circuits, in which these are manually operated electric translating devices, shown as switches115, 116.

The respective control circuits are shown as partial circuits, the respective ends of which are connected with the respective cooperating main circuits at opposite sides of the respective magnetic switches for the re spective main circuits. 1 The control circuits are shown as by-pass circuits or partial circuits which include electric conductors 117,118, and a- 'common" 7' electric conductor 119'. The commonfelectrio conductor 119 is instanced as connecting foundation supporting the same to prevent tilt-i11 of the supported parts, as by anchor-bolts158, and nuts 160.

betweenthe guides'ot the carriage and zthe track. r 7

My invention 1s -s1mple,;and provides for extreme convenlence, accuracy and safety in manipulation.

I have in Figs. 81:0 11 inclusive shown a modification of my improved device, in

which the track is instancedas comprising rails 161, on which wheels "162, 168', respectively fixed to axles 16 1, 165, are'arranged to travel. 7 The rails are rigidly fixed the b means of The axle 164, is journaled as in bearings 166 on the carriage, and the axle 165 is journaled in bearings 167 on; the carriage.

ilhese bearings are located in depending flanges l68,udepending integrally from the platform l69 of the carriage. The depend- 1 ing flanges 168are provided with inwardly extending shoes 170 received under and slidable lengthwise of the heads 171 of the rails.

The wheels are provided'with flanges 172 positioned alongthe inner faces of said heads.

. Lateral positioning-of the carriage is thus assuredfand maintaining theg'aarallehsm of 1 the carriage, with thetrack is assured. V

i The inwardly extending shoes 170 may be adjustable as by means oi set-bolts 17 threadedzin lugs 176' of the flanges 168 and bearing against theshoes.

Clamp-bolts 177 are received through slots 178 in the shoes 170 andholes 179 in the flanges 168 and a have nuts 180 receivedthereover for clamping the shoes to. the carriage." The flanges V 168 form protecting aprons for the track and wheels. V

In this modification, the shaft is instanced as provided with. afpinion 185, meshing with a gear 186, fixed to a worm-shaft 1S7, jour naled in bearings 188 on the carriage. The

worm-shaft has a worm 189 fixed thereon,

which mesheswith a worm-gear 190, fixed to the axle 164. Bearings 191, are shown at the respectivevsides of said wormwheel, about the axle 1611-, and are located on hangers 192, depending integrallytrorn the carriage.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters, Patent, iszr V I 1. In a traveling drilling machine, the combination of a track, a carriage movable therealong, a base fixed to said' carriage, a

post extending rigidly upwardly from said base, a rotatable column about said post above said base, a drill-arm adjustable to ing with one end of said shaft atone-side of said .base for driving said shaft, and power connectingmeans at the opposite side of said base connecting the other end of said shaft with said track, power controlling means for said motor, and control means for the latter on said drlll arm.

2. In a traveling drilling unachine, the 7 V combinatlon of a track, a carriage movable therealong, a base fixed to said carriage, a

post extending rigidly upwardly from said" base, a rotatable column about said post above said base,a drill-arm on said column,

a drill-slide slidable laterally on said drill- 7 arm toward and from said column, a'carriage moving shaft exte'nding through said base below said rotatable column, a motor supported by "said carriage at one side of I said base, power connectingmeans at the 0p poslte side of said base, said power connecting means connecting with said track, said power connecting means and said motor connecting with the respective ends of said shaft at the respective sides of said base, and. power controlling means for said motor.

3. In a traveling drilling machine, the

combination of a track, a carriage movable therealong, a base'fixed to said carriage, a post extending rigidly upwardly from said base, a rotatable column about said post above said base a drill-arm adjustable'to elevationon said column and arranged to be adjusted to radial positions about said post, a drilLslide slidable laterally .on said drillarm toward and from said column,a shaft extending through said base below said ro-' tatable column, a motorat'one side of said base connecting wit-h one end of said shaft, a worm and worm-wheel at the opposite side of said base connecting with the other end of said shaft, said worm and worm-wheel having operative connection with said track for kmoving said carriage lengthwise of said trac a In testimony whereof, I have hereunto v signed my name.

STANLEY M. RATLIFF. 

